Files v2 - Use Files field in attachment (#17707)

- Add FILES field on attachment
- Adapt Attachment logic in front to use new resolver/controller
- Update files-field logic to infer applicationId from fieldMetadataId +
ask for fieldMetadataId in upload resolver
- Design update


To do in next PR : 
- Adapt activity files logic

packages/twenty-front/src/modules/settings/data-model/constants/SettingsNonCompositeFieldTypeConfigs.ts

@@ -144,7 +144,7 @@ export const SETTINGS_NON_COMPOSITE_FIELD_TYPE_CONFIGS: SettingsNonCompositeFiel
     [FieldMetadataType.FILES]: {
       label: 'Files',
       Icon: IllustrationIconFile,
-      category: 'Advanced',
+      category: 'Basic',
       exampleValues: [
         [
           {